Answer:
the last bullet point I guess is the answer
a no the corresponding angles are not congruent
∠A ≠ ∠E and ∠D ≠ ∠H
(6 - 2) - 1 = 4 - 1 = 3
6 - (2 - 1) = 6 - 1 = 5
The associative rule doesn't work for subtraction because you get different results when you move the parentheses.
